//
//  Extension.swift
//  SwiftDemo
//
//  Created by admin on 2020/10/15.
//

import UIKit

class Extension: UIButton {
    override convenience init(frame: CGRect) {
        self.init()

    }

//    构造函数
     convenience init(frame: CGRect, imageName: String, bgImageName: String) {
        self.init()

    }
}
